CXX

.cxx is a file extension for C++ files.

CXX may also refer to: 120 (number) or CXX in Roman Numerals AD 120 No. 120 Squadron RAF Sonnet CXX, a sonnet by William Shakespeare Canto CXX, a canto of the epic poem The Cantos by Ezra Pound C++, the programming language, alternately rendered as "Cxx" CX-X, a cargo plane program that resulted in the Lockheed C-5 Galaxy